timmeemaii



(N0 Muriel.)

o. 8 8., e n U ,la d N n N .e Amm i Man. .Rl BAW Mr Ma. IMQ Tv.. .u BDDE o Q A 8. 2 2 o. N

fzneim..

of 47M IlNrrnD STATES .WENT trice.

KARL E. TIMMERMANN, OF SENFTENBERG, PRUSSIA.

BURGLAR-ALARIVI.

SPECIFICATION forming part of Letters Patent No. 228,490, dated June8,11880.

Application led March 520, 1880. (No model.)

To all whom 'it may concern Be it known that I, KARL EMIL TIMMER- MANN,of Senftenberg, Kingdom of Prussia, have invented a certain new anduseful Improvement in Burglar-Alarms, of which the following is aspeciiication.

The object I have in view is to produce a torpedo for attachment todoors or windows, so that when the same are opened the torpedo will bereleased, and falling will strike the iioor and explode, which torpedowill be simple aud cheap in construction, can be loaded to produce aloud explosion, and at the same time will not set fire to the curtainsor carpet iu the room where it is placed.

My invention consists iu the peculiar construction of the torpedo, asfully hereinafter explained.

In the accompanying drawings, forming a part hereof, Figure 1 is acentral section of the torpedo; Fig. 2, a sectional view of a modifiedform ot' the same; Fig. 3, au elevation of a window, with my torpedoattached thereto, aud Fig. 4 a sectional perspective View, showing themethod of attaching the torpedo.

Like letters denote corresponding parts in all of the iigures.

A is a weight of metal, and preferably of cylindrical form. It has aneye or hole, a, in its upper end, to which is connected the cord Z) forsuspending the torpedo. The lower end of the weight is bored out to forma cylindrical chamber, at the upper end of which a transverse hole, c,is bored through the walls ofthe saine.

A round head, B, has a shank, B', which fits loosely in said chamber,and is held therein by screws d, which enter a groove, c, in the shank.This annular groove e is wide enough to permit a vertical play of thehead B and its shank.

A hole is bored up through the center of the head and shank B B', and inthis hole is turned a screw, f, having au extension, j", with a pointresem bling that of a screw-driver. A chamber to receive the explosivecompound is formed around the extension f' of the screw "l The point ofthe extension j" rises a sli'ort distance above the shank B', andreceives the percussion-cap, as shown.

The screws d carry guards g, which are situated opposite the holes c,and prevent the gases of the explosion from setting re to the carpet orcurtains of the room.

It will be seen that if the torpedo is allowed to drop when loaded thehead B will strike the door and the powder will be eX- ploded.

In the modification, Fig. 2, the shank B' has an oval hole, h, madethrough it trans- Versely, and is held by a single screw, d, passingthrough such hole. The hole c eX- tends through one side only ofthechamberin the lower end of the weight, and there is but one guard, g.

The solid shank B' has a wedge-shaped striking-point rising from it, andthe percussion-cap, iilled with fulminating-powder or other strongexplosive, is held in a small hole in the weight directly above theshank B'.

To apply the torpedo to a window it may be hung on a small lever, C,resting by a point on the lower sash and held by an eye, z', on theupper sash, so that when either sash is moved the lever will be releasedand the torpedo allowed to fall.

The torpedo can be hung the right distance from the iioor or thewindow-seat, so thatit will do no damage when it strikes.

The torpedo can be attached to a door by any simple means, so that itwill fall when the door is opened.

The torpedo can also be used on railroadtrains to sound an alar1n,andmay be counected with the signal-cord.

To load the torpedo the head and shank B B' have to be removed from theweight.

What I claim as my invention isl. In a burglar-alarm, the fallingtorpedo, having vent-holes c and guards g, substantially as describedand shown.

2. In a burglar-alarm,the torpedo described, consisting of weight A,bored out at its lower end, the head and shank B B', screws d, guards g,vent-holes c, screw f, and extension j", constructed and arrangedsubstantially as set forth and shown.

In testimony whereof I have signed my name to this specification in thepresence of two subseribin g witnesses.

G. DITTMAn, FRANK G. ZIMMERMAN.

IOO

